CVE-2022-50859
Unknown
Description
In the Linux kernel, the following vulnerability has been resolved: cifs: Fix the error length of VALIDATE_NEGOTIATE_INFO message Commit d5c7076b772a ("smb3: add smb3.1.1 to default dialect list") extend the dialects from 3 to 4, but forget to decrease the extended length when specific the dialect, then the message length is larger than expected. This maybe leak some info through network because not initialize the message body. After apply this patch, the VALIDATE_NEGOTIATE_INFO message length is reduced from 28 bytes to 26 bytes.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedDec 30, 2025
First seenDec 30, 2025
How to fix
Update
- Linux Linuxd0050ec3ebbcb3451df9a65b8460be9b9e02e80c, 9312e04b6c6bc46354ecd0cc82052a2b3df0b529, 60480291c1fcafad8425d93f771b5bcc2bd398b4, 943eb0ede74ecd609fdfd3f0b83e0d237613e526, fada9b8c95c77bb46b89e18117405bc90fce9f74, e98ecc6e94f4e6d21c06660b0f336df02836694f or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | d5c7076b772ad7dcdb92303397b36aee8fa0d25d ≤ v < d0050ec3ebbcb3451df9a65b8460be9b9e02e80c, d5c7076b772ad7dcdb92303397b36aee8fa0d25d ≤ v < 9312e04b6c6bc46354ecd0cc82052a2b3df0b529, d5c7076b772ad7dcdb92303397b36aee8fa0d25d ≤ v < 60480291c1fcafad8425d93f771b5bcc2bd398b4, d5c7076b772ad7dcdb92303397b36aee8fa0d25d ≤ v < 943eb0ede74ecd609fdfd3f0b83e0d237613e526, d5c7076b772ad7dcdb92303397b36aee8fa0d25d ≤ v < fada9b8c95c77bb46b89e18117405bc90fce9f74, d5c7076b772ad7dcdb92303397b36aee8fa0d25d ≤ v < e98ecc6e94f4e6d21c06660b0f336df02836694f, 5.0 | d0050ec3ebbcb3451df9a65b8460be9b9e02e80c, 9312e04b6c6bc46354ecd0cc82052a2b3df0b529, 60480291c1fcafad8425d93f771b5bcc2bd398b4, 943eb0ede74ecd609fdfd3f0b83e0d237613e526, fada9b8c95c77bb46b89e18117405bc90fce9f74, e98ecc6e94f4e6d21c06660b0f336df02836694f |
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